Far as I can tell, this is the opposite of the trend, in the U.S. and Canada.
> I wonder if the drop in IQ is related to the increase in wealth inequality in these past 50 years as well.
Not sure what mechanism you think would enable that.
Thinking that the richest people in society are, in relative terms, more rich than you than before has no obvious effect on anything related to IQ.
Average and median PPP wealth and income continue to grow.
> Far as I can tell, this is the opposite of the trend, in the U.S. and Canada.
We've got an obesity epidemic. The average American is clearly not eating healthy. Maybe you misinterpreted the OP's statement? "Decrease in quantity of healthy food consumed" is awkward, but the intent is clear from context.
Well, a decrease from when? As far as I can tell, OP meant that the cited decrease is still under way, and hence contributing to an ongoing decline in average IQ.
Far as I can tell, this is the opposite of the trend, in the U.S. and Canada.
> I wonder if the drop in IQ is related to the increase in wealth inequality in these past 50 years as well.
Not sure what mechanism you think would enable that. Thinking that the richest people in society are, in relative terms, more rich than you than before has no obvious effect on anything related to IQ. Average and median PPP wealth and income continue to grow.